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Meng HP, Zhao HF, Zhang XN, Xu TW, Guo CY. [Splenic metastasis of endometrial cancer 8 years after treatment: report of a case]. Zhonghua Bing Li Xue Za Zhi 2024; 53:404-406. [PMID: 38556829 DOI: 10.3760/cma.j.cn112151-20231023-00291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Affiliation(s)
- H P Meng
- Department of Graduate School, Hebei North University, Zhangjiakou 075000, China
| | - H F Zhao
- Department of Pathology, Hebei General Hospital, Shijiazhuang 050051, China
| | - X N Zhang
- Department of Pathology, Hebei General Hospital, Shijiazhuang 050051, China
| | - T W Xu
- Department of Graduate School, Hebei North University, Zhangjiakou 075000, China
| | - C Y Guo
- Department of Pathology, Traditional Chinese Medicine Hospital of Xianxian, Cangzhou 062250, China
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Geng X, Li HL, Hu HT, Guo CY, Zhang HK, Li J, Yao QJ, Xia WL, Yuan H. [Design of an improved percutaneous transhepatic cholangio drainage tube based on MRCP imaging data]. Zhonghua Nei Ke Za Zhi 2024; 63:291-294. [PMID: 38448193 DOI: 10.3760/cma.j.cn112138-112138-20231106-00299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Objective: Quantified MRCP imaging data was used as a reference for design and preparation of a modified percutaneous transhepatic cholangio drainage (PTCD) tube. Methods: 3.0 T upper abdominal MR and MRCP imaging data of 2 300 patients treated from July 2015 to July 2020 at the Department of Radiology of the Affiliated Cancer Hospital of Zhengzhou University were screened and a total of 381 patients diagnosed with biliary duct structures were identified. Causative etiologies among these patients included pancreatic adenocarcinoma (pancreatic head), cholangiocarcinoma, ampullary carcinoma, as well as intrahepatic and/or extrahepatic bile duct dilation. An improved PTCD tube was designed based on MRCP quantification of left and right hepatic and common hepatic duct length. Results: In the setting of biliary obstruction caused by malignancy, the distance of the left hepatic duct from its origin to the point of left and right hepatic duct confluence was 15.9±3.8 mm, while the distance of the right hepatic duct from its origin to the point of left and right hepatic duct confluence was 12.4±3.2 mm; the length of the bile duct from its origin to the point of left and right hepatic duct confluence was 34.0±8.1 mm. The improved PTCD tube design incorporated an altered length of the drainage orifice. Conclusion: MRCP imaging of the biliary tract is effective for measuring biliary tract length in the setting of pathological dilation. Based on our biliary tract measurements, a modified PTCD tube was designed to more effectively meet drainage requirements and manage biliary obstruction caused by Bismuth-Corlette type Ⅱ and Ⅲ malignancies.
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Affiliation(s)
- X Geng
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - H L Li
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - H T Hu
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - C Y Guo
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - H K Zhang
- Department of Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - J Li
- Department of Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Q J Yao
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - W L Xia
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
| | - H Yuan
- Department of Interventional Radiology,the Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital,Zhengzhou 450008,China
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Li Y, Guo L, Guo CY, Lei CQ, Zhang K, Wang NC, Wang ZZ, Xuan LX. [The expression of Plakoglobin in residual cancer after neoadjuvant chemotherapy for breast cancer and its prognostic impact on patients]. Zhonghua Zhong Liu Za Zhi 2023; 45:1057-1064. [PMID: 38110314 DOI: 10.3760/cma.j.cn112152-20230714-00293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Objective: To investigate the relationship between the expression levels of Plakoglobin protein in residual lesions after neoadjuvant chemotherapy (NAC) and the prognosis of breast cancer patients. Methods: Clinical and pathological data from 174 breast cancer patients who underwent surgery after receiving NAC at the Cancer Hospital of Chinese Academy of Medical Sciences from January 2009 to December 2017 were collected. The expression level of Plakoglobin in residual cancer lesions was evaluated by immunohistochemistry. The correlation between Plakoglobin expression level and clinicopathological features was analyzed. Survival analysis was performed using the Kaplan-Meier method, and Cox proportional hazard regression models were used for factor analysis. Results: Among the 174 patients, 140 had low expression of Plakoglobin, and 34 had high expression. The median disease-free survival (DFS) and overall survival (OS) in the Plakoglobin low expression group were 59.46 and 71.68 months, respectively, both of which were higher than those in the high expression group (36.58 and 47.26 months, respectively, both P<0.05). Univariate analysis showed that Plakoglobin expression, pathological N stage, lymphovascular invasion status, histological grade, Ki-67, and molecular subtypes were associated with OS (all P<0.05), while pathological N stage, histological grade, and Ki-67 were associated with DFS (all P<0.05). Multivariate analysis revealed that Plakoglobin expression (HR=2.438, 95% CI: 1.256-4.735, P=0.008) was an independent predictor for OS, and Ki-67 (HR=2.228, 95% CI: 1.316-3.773, P=0.003) was an independent predictor for DFS. Conclusion: In breast cancer patients with residual lesions after NAC, those with low Plakoglobin expression have relatively longer OS and Plakoglobin is an independent prognostic factor for OS.
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Affiliation(s)
- Y Li
- Department of Breast Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Y Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Q Lei
- Department of Breast Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - K Zhang
- Department of Breast Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N C Wang
- Department of Cancer Prevention, Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Z Wang
- Department of Breast Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L X Xuan
- Department of Breast Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Li JJ, Dai WQ, Mo WH, Xu WQ, Li YY, Guo CY, Xu XF. Fucoidan Ameliorates Ferroptosis in Ischemia-reperfusion-induced Liver Injury through Nrf2/HO-1/GPX4 Activation. J Clin Transl Hepatol 2023; 11:1341-1354. [PMID: 37719959 PMCID: PMC10500289 DOI: 10.14218/jcth.2023.00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/17/2023] [Accepted: 05/10/2023] [Indexed: 07/03/2023] Open
Abstract
Background and Aims Liver ischemia-reperfusion (IR) injury is a common pathological process in liver surgery. Ferroptosis, which is closely related to lipid peroxidation, has recently been confirmed to be involved in the pathogenesis of IR injury. However, the development of drugs that regulate ferroptosis has been slow, and a complete understanding of the mechanisms underlying ferroptosis has not yet been achieved. Fucoidan (Fu) is a sulfated polysaccharide that has attracted research interest due to its advantages of easy access and wide biological activity. Methods In this study, we established models of IR injury using erastin as an activator of ferroptosis, with the ferroptosis inhibitor ferrostatin-1 (Fer-1) as the control. We clarified the molecular mechanism of fucoidan in IR-induced ferroptosis by determining lipid peroxidation levels, mitochondrial morphology, and key pathways in theta were involved. Results Ferroptosis was closely related to IR-induced hepatocyte injury. The use of fucoidan or Fer-1 inhibited ferroptosis by eliminating reactive oxygen species and inhibiting lipid peroxidation and iron accumulation, while those effects were reversed after treatment with erastin. Iron accumulation, mitochondrial membrane rupture, and active oxygen generation related to ferroptosis also inhibited the entry of nuclear factor erythroid 2-related factor 2 (Nrf2) into the nucleus and reduced downstream heme oxygenase-1 (HO-1) and glutathione peroxidase 4 (GPX4) protein levels. However, fucoidan pretreatment produced adaptive changes that reduced irreversible cell damage induced by IR or erastin. Conclusions Fucoidan inhibited ferroptosis in liver IR injury via the Nrf2/HO-1/GPX4 axis.
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Affiliation(s)
- Jing-Jing Li
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
| | - Wei-Qi Dai
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
| | - Wen-Hui Mo
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
| | - Wen-Qiang Xu
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
| | - Yue-Yue Li
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
| | - Chuan-Yong Guo
- Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuan-Fu Xu
- Department of Gastroenterology, Shidong Hospital of Shanghai, Shanghai, China
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Xu JX, Guo CY, Yuan P, Wang BZ, Zhou Q, Ying JM. [Mediastinal germ cell tumor with somatic-type malignancy: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:733-735. [PMID: 37408409 DOI: 10.3760/cma.j.cn112151-20230212-00120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Affiliation(s)
- J X Xu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Y Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Yuan
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - B Z Wang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Zhou
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Lei HZ, Yuan P, Jia J, Guo CY, Wang BN, Guo L, Ying JM. [Infiltration and significance of M1 macrophage in breast cancer: an analysis of METABRIC database and clinical validation]. Zhonghua Zhong Liu Za Zhi 2023; 45:410-414. [PMID: 37188626 DOI: 10.3760/cma.j.cn112152-20221114-00756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Objective: To investigate the differences of immune microenvironment between stage T1N3 and stage T3N0 breast cancer patients and explore the relationship between M1 macrophage infiltration and lymph node metastasis in breast cancer. Methods: Clinical information and RNA-sequencing (RNA-Seq) expression data of stage T1N3 (n=9) and stage T3N0 (n=11) breast cancer patients were extracted from Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) databases. Using CIBERSORT, the proportions of 22 types of immune cells were calculated, and then the differences of immune cell infiltration between stage T1N3 and T3N0 patients were compared. From 2011 to 2022, pathologic specimens were collected from breast cancer patients who underwent curative resection at the Cancer Hospital, Chinese Academy of Medical Sciences, including 77 at stage T1N3 and 58 at stage T3N0.The METABRIC database analysis results were verified by examining the density of M1 macrophages in tissues using dual-staining immunohistochemistry. Results: METABRIC data analysis showed M1 macrophage was the highest proportion, 15.85% in stage T1N3 breast cancer; M2 macrophage was the highest proportion, 13.07% in stage T3N0 breast cancer.M1 macrophage proportions were statistically different between patients with stage T1N3 and stage T3N0 (P=0.010). The dual-staining immunohistochemistry analysis of breast cancer tissues showed M1 macrophage density (median) of 62.0 and 38.0 cells/mm(2) for stage T1N3 and T3N0, respectively. The difference was statistically significant (P=0.002). Conclusion: The density of M1 macrophages is notably higher in stage T1N3 patients and is associated with lymph node metastasis.
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Affiliation(s)
- H Z Lei
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Yuan
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Jia
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Y Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - B N Wang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Zheng B, Zou SM, Yang L, Xue XM, Guo CY, Wang L, Liu WC, Zhou ZZ, Liu X, Xue LY. [Value of direct immunohistochemical staining in assisting intraoperative frozen diagnosis of bronchiolar adenoma]. Zhonghua Bing Li Xue Za Zhi 2023; 52:142-146. [PMID: 36748134 DOI: 10.3760/cma/j.cn112151-20220829-00739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: To explore the feasibility and application value of intraoperative direct immunohistochemical (IHC) staining in improving the diagnosis accuracy in difficult cases of bronchiolar adenoma (BA). Methods: Nineteen cases with single or multiple pulmonary ground-glass nodules or solid nodules indicated by imaging in Cancer Hospital of Chinese Academy of Medical Sciences from January to July 2021 and with difficulty in differential diagnosis at frozen HE sections were selected. In the experimental group, direct IHC staining of cytokeratin 5/6 (CK5/6) and p63 was performed on frozen sections to assist the differentiation of BA from in situ/micro-invasive adenocarcinoma/adenocarcinoma/invasive mucinous adenocarcinoma. In the control group, two pathologists performed routine frozen HE section diagnosis on these 19 cases. The diagnostic results of paraffin sections were used as the gold standard. The sensitivity and specificity of BA diagnosis, consistency with paraffin diagnosis and time used for frozen diagnosis were compared between the experimental group and the control group. Results: The basal cells of BA were highlighted by CK5/6 and p63 staining. There were no basal cells in the in situ/microinvasive adenocarcinoma/adenocarcinoma/invasive mucinous adenocarcinoma. In the experimental group, the sensitivity and specificity with aid of direct IHC staining for BA were 100% and 86.7%, respectively, and the Kappa value of frozen and paraffin diagnosis was 0.732, and these were significantly higher than those in the control group (P<0.05). The average time consumption in the experimental group (32.4 min) was only 7 min longer than that in the control group (25.4 min). Conclusions: Direct IHC staining can improve the accuracy of BA diagnosis intraoperatively and reduce the risk of misdiagnosis, but require significantly longer time. Thus frozen direct IHC staining should be restricted to cases with difficulty in differentiating benign from malignant diseases, especially when the surgical modalities differ based on the frozen diagnosis.
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Affiliation(s)
- B Zheng
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S M Zou
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Yang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X M Xue
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Y Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Wang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W C Liu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Z Zhou
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Liu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Y Xue
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Guo CY, Wang JT, Ran ZX, Gong L, Zhu JJ, Li DC, Ding L. [The correlation between methylation in HPV16 long control region and cervical intraepithelial neoplasia grade 2 or more: a Meta-analysis]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1821-1827. [PMID: 36444468 DOI: 10.3760/cma.j.cn112338-20220307-00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the correlation between methylation in human papillomavirus 16 (HPV16) long control region (LCR) and cervical intraepithelial neoplasia grade ≥2 (CIN2+). Methods: The literature retrieval was conducted by using the databases of PubMed, Embase, Cochrane Library, Web of Science, CNKI, Wanfang data and Weipu according to the inclusion and exclusion criteria, and the retrieval period was from the establishment of the databases to February 27th, 2022. Software RevMan 5.3 and Stata 15.1 were used for Meta-analysis. Results: A total of 17 literatures were included involving 1 421 subjects. Results of Meta-analysis showed that OR of the correlation between methylation of HPV16 LCR and CIN2+ was 1.56 (95%CI: 0.70-3.47). Subgroup analysis showed that methylation of the 5' terminal, enhancer and promoter regions were not associated with CIN2+, while in four E2 binding sites (E2BS), the methylation of E2BS1, E2BS3 and E2BS4 increased the risk of CIN2+, with the ORs of 3.92 (95%CI: 1.92-7.99), 10.50 (95%CI: 3.67-30.04) and 3.65 (95%CI: 1.58-8.41), respectively. However, subgroup analysis on E2BS2 was not performed due to the limitation of the number of literatures. According to the different sources of population, the risk of CIN2+ in Chinese population was associated with methylation of HPV16 LCR (OR=2.14, 95%CI: 1.31-3.50). There was a correlation between the risk of CIN2+ and HPV16 LCR methylation in the population with pyrosequencing of HPV16 LCR, and OR was 1.75 (95%CI: 1.03-2.98). Conclusion: The risk of CIN2+ is correlated with the methylation of E2BS in HPV16 LCR, which can be used as potential biomarkers.
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Affiliation(s)
- C Y Guo
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J T Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Z X Ran
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L Gong
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J J Zhu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - D C Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L Ding
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Hu HT, Guo CY, Zhao XH, Li HL. [Current status, challenges and strategy of combination treatment of local interventional therapy and immunotherapy for primary hepatocellular carcinoma]. Zhonghua Nei Ke Za Zhi 2022; 61:455-459. [PMID: 35488591 DOI: 10.3760/cma.j.cn112138-20220317-00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- H T Hu
- Department of Minimally Interventional Radiology, the Affiliated Cancer Hospital of zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - C Y Guo
- Department of Minimally Interventional Radiology, the Affiliated Cancer Hospital of zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - X H Zhao
- Department of Minimally Interventional Radiology, the Affiliated Cancer Hospital of zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - H L Li
- Department of Minimally Interventional Radiology, the Affiliated Cancer Hospital of zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
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Zhu JJ, Wang JT, Gong L, Ran ZX, Guo CY, Song L, Lyu YJ, Ding L. [A nested case-control study on the relationship between red blood cell folate and the prognosis of low-grade cervical intraepithelial neoplasia]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:453-458. [PMID: 35488542 DOI: 10.3760/cma.j.cn112150-20210906-00869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the relationship between red blood cell folate (RBC folate) and the prognosis of low-grade cervical intraepithelial neoplasia (CIN 1). Methods: In the married women cohort established in 2014, 564 women with CIN 1 diagnosed by pathology were recruited. The demographic characteristics and factors of cervical intraepithelial neoplasia were collected. Meanwhile, the infection status of human papillomavirus (HPV) was detected by molecular diversion hybridization, and the level of RBC folate was measured by chemical photoimmunoassay. After 24 months of follow-up, pathological examination was performed again to observe the prognosis of participants. The women with reversal were taken as the control group,and those with continuous and progressive CIN 1 were taken as the case group respectively. The relationship between RBC folate and CIN 1 outcome was evaluated by logistic regression model. Results: 453 women completed the follow-up, aged (49.72±6.84) years old. CIN 1 was reversed in 342 women, continued in 58 cases and progressed in 53 cases. The RBC folate level M (Q1,Q3) were 399.01 (307.10, 538.97) ng/ml, 316.98 (184.74, 428.49) ng/ml and 247.14 (170.54, 348.97) ng/ml, respectively. With the decrease of RBC folate, the risk of continuous and progressive CIN 1 increased (all P<0.001), while the risk of reversal CIN 1 decreased gradually (P<0.001). Combined with high-risk human papillomavirus (HR-HPV) infection status, low level of RBC folate could increase the risk of CIN 1 progression regardless of HR-HPV infection (HR-HPV infection: OR=21.34, 95%CI: 3.98-114.54; HR-HPV uninfection: OR=11.15, 95%CI: 2.34-53.13). Conclusion: Low level of RBC folate could increase the risk of CIN 1 persistence and progression regardless of HR-HPV infection.
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Affiliation(s)
- J J Zhu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J T Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L Gong
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Z X Ran
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - C Y Guo
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L Song
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Y J Lyu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L Ding
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Wei CJ, Guo CY, Li QR, Ye LP. [A family of hereditary protein S deficiency with the onset of pulmonary embolism and literature review]. Zhonghua Er Ke Za Zhi 2022; 60:134-138. [PMID: 35090231 DOI: 10.3760/cma.j.cn112140-20210915-00797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the clinical characteristics and genotype of PROS1 gene related hereditary protein S deficiency (PSD) with the onset of pulmonary embolism in children. Methods: A family with pulmonary embolism was diagnosed as hereditary PSD in the Department of Pediatrics of Peking University First Hospital in November 2020, and the clinical data, including clinical manifestations, laboratory tests, imaging and genetic results, were collected for a retrospective research. The family members were also screened for protein S activity and PROS1 gene mutations. A literature search with "PROS1" "protein S deficiency" "homozygous" and "complex heterozygous" as key words was conducted at PubMed, China National Knowledge Infrastructure, and Wanfang Data Knowledge Service Platform (up to October 2021). Case reports of patients with PROS1 gene homozygous or complex heterozygous variants and related clinical features, protein S activity, and genotype were reviewed and analyzed. Results: The proband, a 14-year-old girl, was admitted to the hospital for a 9-day history of coughing and a 4-day history of chest pain in November 2020. After admission, laboratory tests showed that D-dimer was 8.38 mg/L (reference:<0.24 mg/L). An urgent CT pulmonary angiography confirmed bilateral pulmonary embolism and right lower pulmonary infarction, while an ultrasonography showed deep vein thrombosis in her left leg. Further examination revealed that protein S activity was less than 10%. The proband's second sister, a 12-year-old girl, was admitted to the hospital in December 2020. Her protein S activity was 8% and an ultrasonography showed deep vein thrombosis in her right leg. The protein S activity of the proband's father and mother were 36% and 26%, respectively. Trio-whole-exome sequencing detected compound heterozygous PROS1 gene variants (c.-168C>T and c.200A>C (p.E67A)) for the proband and her second sister, that were inherited from her father and mother, respectively. The proband's third sister's protein S activity was 28%; she and the proband's grandfather both carried c.200A>C (p.E67A) variants. The proband and her younger sister were treated with rivaroxaban and responded well during the 3-month follow-up. A total of 1 Chinese report in literature and 18 English literature were retrieved and 14 patients with protein S deficiency caused by homozygous or complex heterozygous variants of PROS1 gene were enrolled, including 8 male and 6 female patients. The ages ranged from 4 days to 35 years. Three patients experienced fulminant purpura or severe intracranial hemorrhage in early neonatal-period, while the remaining 11 patients developed venous thromboembolism in adolescence. Protein S activity was examined in 11 patients, and all showed less than 10% of activity. Missense variants was the most common type of gene variants. Conclusions: For children with pulmonary embolism, if there are no clear risk factors for thrombosis, hereditary protein S deficiency should be considered, and protein S activity should be examined before oral anticoagulant drugs. If protein S activity is less than 10%, protein S deficiency caused by homozygous or complex heterozygous variants should be considered.
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Affiliation(s)
- C J Wei
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - C Y Guo
- Department of Pulmonary and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Q R Li
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - L P Ye
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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12
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Xu YP, Dong ZN, Zhou YQ, Zhao YJ, Zhao Y, Wang F, Huang XY, Guo CY. Role of eIF3C Overexpression in Predicting Prognosis of Intrahepatic Cholangiocarcinoma. Dig Dis Sci 2022; 67:559-568. [PMID: 33576946 DOI: 10.1007/s10620-021-06878-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/24/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Elevated expression of eukaryotic initiation factor 3c (eIF3C) was recently uncovered to promote several types of cancer progression by inducing cell proliferation. Here, we aimed to assess the expression and prognostic value of eIF3C in intrahepatic cholangiocarcinoma (ICC) patients. METHODS Expression of eIF3C was analyzed by immunohistochemistry in tissue microarrays (TMAs) containing 138 ICC and paired peritumoral tissues from ICC patients. Then, the roles of eIF3C in ICC cells were investigated by RNA interference, and the relationship between the eIF3C and KI67 expression was explored in ICC cells and tissues. Finally, the relation between the eIF3C level and clinicopathologic features of ICC was probed, and Kaplan-Meier and Cox's analyses were performed to assess the prognostic merit of eIF3C and KI67 in ICC patients. RESULTS The expression of eIF3C was elevated in ICC tissues compared to paired peritumoral tissues, which was consistent with the result from the GEPIA database. The downregulation of eIF3C in ICC cells impaired the cellular invasion, metastasis, colony formation, and proliferation. Moreover, we further found a positive relationship between the eIF3C and KI67 expression in ICC cells and tissues. The expression of eIF3C in ICC tissues was positively correlated with lymphatic metastasis (p = 0.049), and the high level of KI67 was frequently found in ICC patients with the large tumor (p = 0.028), high serum AFP (p = 0.019), or lymphatic metastasis (p = 0.039). Notably, patients with the eIF3C or KI67 overexpression had shorter overall survival and higher disease-free survival rates than those with low expression of eIF3C or KI67, and the combination of eIF3C or KI67 expression was an independent parameter for predicting the prognosis and recurrence of ICC patients. CONCLUSIONS Elevated eIF3C expression promotes ICC development, and combination of eIF3C and KI67 is a valuable predictor of the survival and recurrence of ICC patient.
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Affiliation(s)
- Ya-Ping Xu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China
| | - Ze-Ning Dong
- Xiangya Medical College, Central South University, Changsha, 410008, Hunan, People's Republic of China.,Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Ying-Qun Zhou
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China
| | - Yu-Jie Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China
| | - Yan Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China
| | - Feng Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China
| | - Xiao-Yong Huang
- Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Chuan-Yong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, People's Republic of China.
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Xu YP, Dong ZN, Wang SW, Zheng YM, Zhang C, Zhou YQ, Zhao YJ, Zhao Y, Wang F, Peng R, Tang MC, Bai DS, Huang XY, Guo CY. circHMGCS1-016 reshapes immune environment by sponging miR-1236-3p to regulate CD73 and GAL-8 expression in intrahepatic cholangiocarcinoma. J Exp Clin Cancer Res 2021; 40:290. [PMID: 34526098 PMCID: PMC8442376 DOI: 10.1186/s13046-021-02095-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/06/2021] [Indexed: 12/30/2022]
Abstract
Background Accumulating evidence indicates that circRNAs may serve as essential regulators in the progression of several human cancers, but the function and mechanism of circRNAs in intrahepatic cholangiocarcinoma (ICC) are largely unknown. Methods RNA-seq was used to assess differentially expressed circRNAs between 4 ICC and peritumor tissues. Quantitative RT-PCR and in situ hybridization were used to determine the circHMGCS1–016 expression in ICC tissues. The function and mechanism of circHMGCS1–016 were further identified via in vivo experiments. The clinical characteristics and prognostic significance of circHMGCS1–016 were analyzed by a retrospective study. The functions of circHMGCS1–016 were assessed via modifying circRNA expression in ICC cells. Moreover, the molecular mechanisms of circHMGCS1–016 in ICC cells were explored by circRNA precipitation, miRNA immunoprecipitation, SILAC and luciferase reporter assays. Results We identified that compared with peritumor tissues, ICC tissues expressed hsa_circ_0008621 (circHMGCS1–016) high by RNA-seq, which was further identified by qRT-PCR and in situ hybridization. Moreover, the expression of circHMGCS1–016 was revealed to be associated with survival and recurrence of ICC patients. By regulating circHMGCS1–016 expression, we found that elevated circHMGCS1–016 promoted ICC development both in vitro and in vivo. By SILAC and circRNA-pull down, we demonstrated that circHMGCS1–016 induced ICC cell invasion and reshaped the tumor immune microenvironment via the miR-1236-3p/CD73 and GAL-8 axis. In ICC tissues, we uncovered that a high level of circHMGCS1–016 was positively associated with CD73 and GAL-8 expression and negatively related to the CD8+ T cells infiltration, which was further validated by establishing a humanized mouse tumor model. Importantly, we displayed that ICC patients with high levels of circHMGCS1–016 in tumor tissues benefited less from anti-PD1 treatment compared to those with low levels of circHMGCS1–016. Conclusions CircHMGCS1–016 is a forceful contributor in ICC development and immune tolerance via miR-1236-3p/CD73 and GAL-8 axis. CircHMGCS1–016 can be explored as a new potential biomarker and therapeutic target for PD1-resistant ICC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02095-2.
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Affiliation(s)
- Ya-Ping Xu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ze-Ning Dong
- Xiangya Medical College, Central South University, Changsha, Hunan, 410008, P. R. China.,Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Shanghai, 200032, P. R. China
| | - Si-Wei Wang
- Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Shanghai, 200032, P. R. China
| | - Yi-Min Zheng
- Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Shanghai, 200032, P. R. China
| | - Chi Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Subei People's Hospital, Clinical Medical School, Yangzhou University Affiliated Hospital, Yangzhou, China
| | - Ying-Qun Zhou
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yu-Jie Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yan Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Feng Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Rui Peng
- Department of Hepatobiliary and Pancreatic Surgery, Subei People's Hospital, Clinical Medical School, Yangzhou University Affiliated Hospital, Yangzhou, China
| | - Mao-Chun Tang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Dou-Sheng Bai
- Department of Hepatobiliary and Pancreatic Surgery, Subei People's Hospital, Clinical Medical School, Yangzhou University Affiliated Hospital, Yangzhou, China.
| | - Xiao-Yong Huang
- Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Shanghai, 200032, P. R. China.
| | - Chuan-Yong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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14
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Xu YP, Zhou YQ, Zhao YJ, Zhao Y, Wang F, Huang XY, Guo CY. High level of CD73 predicts poor prognosis of intrahepatic cholangiocarcinoma. J Cancer 2021; 12:4655-4660. [PMID: 34149929 PMCID: PMC8210563 DOI: 10.7150/jca.51038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 05/21/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Despite recent improvements in the diagnosis and therapy of intrahepatic cholangiocarcinoma (ICC), the prognosis for ICC patients remains poor. Therefore, it is needed to identify new biological indicators for ICC progression. Methods: Immunohistochemistry was engaged to inspect the ecto-5ʹ-nucleotidase (CD73) and CD8 expressions in tissue microarrays including tissues from 140 ICC patients. Then, the association between the level of CD73/CD8 and clinicopathologic characteristics of ICC was analysed. Finally, the prognostic value of CD73 and CD8 levels in ICC patients was assessed by Kaplan-Meier and multivariate and univariate analyses. Results: The CD73 expression was evidently upregulated in ICC tissues compared to the corresponding peritumoral tissues. The elevated CD73 expression was positively related to the lymphatic metastasis (p=0.049). While the level of tumour-infiltrating CD8 T+ cells in tumour tissues was negatively associated with serum AFP (p=0.019), tumor size (p=0.028), and lymphatic metastasis (p=0.039). Additionally, patients with elevated CD73 expression or low tumour-infiltrating CD8+ T cells exhibited shorter overall survival (OS) and higher disease-free survival (DFS) rates than patients with low CD73 expression and/or high tumour-infiltrating CD8+ T cells. Notably, the overexpression of CD73 or low tumour-infiltrating CD8+ T cells was an independent indicator for predicting the OS and DFS of ICC patients. Conclusions: We revealed that CD73 expression and low tumour-infiltrating CD8+T cells are valuable predictors of survival and recurrence in patients with ICC.
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Affiliation(s)
- Ya-Ping Xu
- Department of Gastroenterology, Shanghai Tenth people's hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, P.R. China.,Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ying-Qun Zhou
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yu-Jie Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yan Zhao
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Feng Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xiao-Yong Huang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai 200032, P.R. China
| | - Chuan-Yong Guo
- Department of Gastroenterology, Shanghai Tenth people's hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai, 200072, P.R. China.,Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
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15
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Wei JC, Yuan P, Ling Y, Li L, Guo CY, Guo L, Xue LY, Ying JM. [Histopathological features of squamous cell carcinoma of lung neoadjuvant immunotherapy focusing on responses]. Zhonghua Bing Li Xue Za Zhi 2021; 50:453-457. [PMID: 33915650 DOI: 10.3760/cma.j.cn112151-20200829-00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the pathologic features of responses to neoadjuvant immunotherapy of squamous cell carcinoma (SCC) of the lung. Methods: The study included 31 patients with resected lung SCC post neoadjuvant immunotherapy. All patients were recruited from the neoadjuvant anti-PD-1 (Sintilimab) phase Ⅰb clinical trial (ChiCTR-OIC-17013726). The histopathological morphology and different degrees of pathologic response to immunotherapy were evaluated basing on irPRC standard. Results: According to the percentage of residual viable tumor (% RVT), pathologic responses of complete pathologic response (cPR), major pathologic response (MPR) and non-MPR were noted in 19% (n=6), 29% (n=9), and 52% (n=16) of patients respectively. In addition, extensive immune activation phenomena (immune cell infiltration, including infiltration of lymphocytes, plasma cells, foamy macrophages, lymphocyte aggregation and tertiary lymphoid structures formation) and tissue repair features (giant cells, granuloma formation, proliferative fibrosis and neovascularization) were observed in tumor regression bed. Conclusions: Neoadjuvant immunotherapy has favorable effect on lung SCC. Pathologic assessment of resected lung cancer specimens after neoadjuvant immunotherapy shows unique histopathological features consistent with its mechanism.
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Affiliation(s)
- J C Wei
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Yuan
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Ling
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Li
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C Y Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Y Xue
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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16
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Ruan D, Fouad AM, Fan QL, Huo XH, Kuang ZX, Wang H, Guo CY, Deng YF, Zhang C, Zhang JH, Jiang SQ. Dietary L-arginine supplementation enhances growth performance, intestinal antioxidative capacity, immunity and modulates gut microbiota in yellow-feathered chickens. Poult Sci 2020; 99:6935-6945. [PMID: 33248609 PMCID: PMC7705054 DOI: 10.1016/j.psj.2020.09.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 08/30/2020] [Accepted: 09/15/2020] [Indexed: 01/23/2023] Open
Abstract
This study investigated the effects of dietary Arginine (Arg) on performance, intestinal antioxidative capacity, immunity, and gut microbiota in Chinese yellow-feathered chickens. One thousand two hundred 1-day-old female Qingyuan partridge chickens were randomly assigned to 5 groups with 6 replicates of 40 birds each. Chickens were fed diets with 5 levels of total Arg (8.5, 9.7, 10.9, 12.1, and 13.3 g/kg) without antibiotics for 30 d. The ADFI, ADG, and feed conversion ratio were improved with dietary Arg levels (P < 0.05). The proportions of CD3+ and CD4+/CD8+ lymphocytes responded in a linear (P < 0.05) manner and those of CD4+ in a linear or quadratic (P < 0.05) manner as dietary Arg levels increased. Dietary Arg level had a linear (P < 0.05) or quadratic (P < 0.05) effect on the gene expression of glutathione peroxidase 1, heme oxygenase 1, nuclear factor erythroid 2-related factor 2, and the activities of glutathione peroxidase and total antioxidative capacity in the jejunum and ileum. The relative expression of IL-1β, myeloid differentiation primary response 88, and Toll-like receptor 4 decreased linearly (P < 0.05) in the ileum with increasing dietary Arg levels; secretory IgA contents were increased. In addition, sequencing data of 16S rRNA indicated that dietary Arg increased the relative abundance of Firmicutes phylum, Romboutsia and Candidatus Arthromitus genera, while decreased that of Clostridium sensu stricto 1. A diet containing 12.1 g Arg/kg promoted growth performance, intestinal antioxidation, and innate immunity and modulated gut microbiota in yellow-feathered chickens.
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Affiliation(s)
- D Ruan
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - A M Fouad
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China; Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Q L Fan
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - X H Huo
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - Z X Kuang
- Guangdong Aijiankang Biotechnology Co., Ltd., Qingyuan 511500, China
| | - H Wang
- Guangdong Aijiankang Biotechnology Co., Ltd., Qingyuan 511500, China
| | - C Y Guo
- CJ International Trading Co., Ltd., Shanghai 201107, China
| | - Y F Deng
- CJ International Trading Co., Ltd., Shanghai 201107, China
| | - C Zhang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - J H Zhang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - S Q Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China.
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17
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Jin CR, Hou QB, Ma LY, Wang JY, Guo CY, Niu T, Bai XQ, Li SJ. Association between arterial intima response before and after high fat load and progression of arteriosclerosis. J BIOL REG HOMEOS AG 2020; 34:16. [PMID: 32106927 DOI: 10.23812/19-199-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C R Jin
- Department of Cardiology, the First Hospital of Shanxi Medical University, Taiyuan PR China
| | - Q B Hou
- Department of First Clinical Medicine, Shanxi Medical University, Taiyuan, PR China
| | - L Y Ma
- Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, Taiyuan, PR China
| | - J Y Wang
- Department of Basic Medicine, Shanxi Medical University, Taiyuan, PR China
| | - C Y Guo
- Department of First Clinical Medicine, Shanxi Medical University, Taiyuan, PR China
| | - T Niu
- Department of First Clinical Medicine, Shanxi Medical University, Taiyuan, PR China
| | - X Q Bai
- Department of First Clinical Medicine, Shanxi Medical University, Taiyuan, PR China
| | - S J Li
- Department of Nuclear Medicine, the First Hospital of Shanxi Medical University, Taiyuan, PR China
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Zhang JL, Wang CM, Guo CY, Zhu XD, Zhang Y, Yang JY, Wang YQ, Qu Z, Pi L, Lu HZ, Tian ML. Anomalous Thermoelectric Effects of ZrTe_{5} in and beyond the Quantum Limit. Phys Rev Lett 2019; 123:196602. [PMID: 31765179 DOI: 10.1103/physrevlett.123.196602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Thermoelectric effects are more sensitive and promising probes to topological properties of emergent materials, but much less addressed compared to other physical properties. We study the thermoelectric effects of ZrTe_{5} in a magnetic field. The presence of the nontrivial electrons leads to the anomalous Nernst effect and quasilinear field dependence of thermopower below the quantum limit. In the strong-field quantum limit, both the thermopower and Nernst signal exhibit exotic peaks. At higher magnetic fields, the Nernst signal has a sign reversal at a critical field where the thermopower approaches zero. We propose that these anomalous behaviors can be attributed to the gap closing of the zeroth Landau bands in topological materials with the band inversion. Our understanding to the anomalous thermoelectric properties in ZrTe_{5} opens a new avenue for exploring Dirac physics in topological materials.
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Affiliation(s)
- J L Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, China
- Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Institute of Material Science and Engineering, École Polytechnique Fédéral de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - C Y Guo
- Institute of Material Science and Engineering, École Polytechnique Fédéral de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - X D Zhu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Y Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - J Y Yang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Y Q Wang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Z Qu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - L Pi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Hai-Zhou Lu
- Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - M L Tian
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
- School of Physics and Materials Sciences, Anhui University, Hefei 230601, Anhui,China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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Ren ZL, Hu ZJ, Li D, Jia YJ, Yu N, Yu Y, Guo CY, Zhang XR, He TP. [Application of adaptive statistical iterative reconstruction veo and 80 kv in renal computed tomography angiography]. Zhonghua Yi Xue Za Zhi 2019; 99:1953-1958. [PMID: 31269599 DOI: 10.3760/cma.j.issn.0376-2491.2019.25.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To explore the application of adaptive statistical iterative reconstruction Veo (ASIR-V) and 80 kV in renal computed tomography angiography(CTA). Methods: Eighty patients with renal computed tomography angiography were prospectively collected from April 2018 to July 2018 in the Affiliated Hospital of Shaanxi University of Chinese Medicine and randomly divided into group A and group B. The patients in group A adopted tube voltage 120 kV and contrast agent concentration 600 mgI/kg and reconstructed with filtered back projection (FBP), while the patients in group B were scanned with tube voltage 80 kV and contrast agent concentration 350 mgI/kg and reconstructed with FBP and ASIR-V from 10% to 100% with 10% interval. The CT values and standard deviation (SD) of the right renal artery, left renal artery were measured respectively to calculate the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR).The image quality of renal CTA was subjectively scored by two experienced radiologists blindly using a 5-point criteria.The contrast agent,CT volume dose index(CTDI(vol)) and dose length product(DLP) in both groups were recorded and the effective radiation dose(ED) was calculated. Results: The ED ((2.11±0.19)mSv) and contrast agent ((21.9±3.0)g) in group B were 65.1% (P<0.05) and 42.2% (P<0.05) lower than those in group A ((6.04±1.89)mSv and (38.0±3.8)g).With the increase of ASIR-V percentage in group B, CT values showed no significant difference, SD values gradually decreased, SNR values and CNR values gradually increased.The CT values with different reconstruction algorithm showed no statistically significant difference (all P>0.05) between group A and group B. The SD values with 40%ASIR-V to 100%ASIR-V reconstruction in group B were significantly lower than those of group A (all P<0.05).The SNR values with 50% ASIR-V to 100% ASIR-V reconstruction and CNR values with 70%ASIR-V to 100%ASIR-V were significantly higher than those of group A(all P<0.5).Two radiologists had excellent consistency in subjective scores of image quality for renal CTA(all kappa>0.75, P<0.05). The subjective scores with 60% ASIR-V to 90% ASIR-V in group B were significantly higher than those in group A (P<0.05), of which 70%ASIR-V reconstruction achieved the highest subjective score for renal CTA. Conclusion: ASIR-V and 80 kV can significantly reduce radiation dose (about 65.1%) and contrast agent (about 42.2%) in renal CTA, ASIR-V reconstruction can significantly improve the image quality of renal CTA, of which 70% ASIR-V reconstruction achieved the best image quality in 80 kV renal CTA.
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Affiliation(s)
- Z L Ren
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Z J Hu
- Department of Radiology, Chang'an Hospital, Xi'an 710016, China
| | - D Li
- Department of Radiology, Chang'an Hospital, Xi'an 710016, China
| | - Y J Jia
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - N Yu
- Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Y Yu
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - C Y Guo
- Department of Radiology, the Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - X R Zhang
- Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - T P He
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, China
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20
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Zhu ZN, Zang JJ, Wang ZY, Zou SR, Jia XD, Guo CY, Ma LF, Xu D, Wu F. [Dietary pattern and its seasonal characteristic in residents of Shanghai, 2012-2014]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:880-885. [PMID: 30060298 DOI: 10.3760/cma.j.issn.0254-6450.2018.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze dietary pattern and its seasonal characteristic in residents of Shanghai. Methods: A representative sample was surveyed and followed up in four different seasons during 2012-2014. Information of food consumption was collected by 3-day 24-hour dietary recall and condiments weighing method. The intake of energy and macronutrients were calculated according to the Chinese Food Composition Table. Results: Annual average daily intake was 191.09 g for grain, 250.69 g for vegetable, 107.23 g for fruit, 223.53 g for animal food, 96.39 g for dairy products, 11.19 g for soy bean and its product, 36.54 g for cooking oil, and 7.57 g for salt. Significant differences were observed in food consumption among different seasons (P<0.05). Annual average daily intake of energy was 2 048.70 kcal, carbohydrates was 241.04 g, protein was 82.35 g, fat was 85.99 g and proportion of energy contributed by fat was 37.99%. Different seasons, age, residential areas, and income were influence factors for food consumption (P<0.05). Conclusions: Energy intake was adequate in residents of Shanghai. Unhealthy dietary pattern, including high proportion of fat and consumption of cooking oil and salt (lower than average intake of large cities, but higher than recommendation), was observed. It is necessary to take appropriate nutrition intervention, and future researches on dietary intake should consider seasonal influences.
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Affiliation(s)
- Z N Zhu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - J J Zang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Z Y Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - S R Zou
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X D Jia
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C Y Guo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - L F Ma
- Department of Nutrition and Food Safety, Huangpu District Center for Disease Control and Prevention, Shanghai 200011, China
| | - D Xu
- Department of Public Health, Xuhui District Center for Disease Control and Prevention, Shanghai 200237, China
| | - F Wu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China; Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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21
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Kong WJ, Wan CH, Wang X, Tao BS, Huang L, Fang C, Guo CY, Guang Y, Irfan M, Han XF. Spin-orbit torque switching in a T-type magnetic configuration with current orthogonal to easy axes. Nat Commun 2019; 10:233. [PMID: 30651540 PMCID: PMC6335407 DOI: 10.1038/s41467-018-08181-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 12/03/2018] [Indexed: 12/04/2022] Open
Abstract
Different symmetry breaking ways determine various magnetization switching modes driven by spin–orbit torques (SOT). For instance, an applied or effective field parallel to applied current is indispensable to switch magnetization with perpendicular anisotropy by SOT. Besides of this mode, here we experimentally demonstrate a distinct field-free switching mode in a T-type magnetic system with structure of MgO/CoFeB/Ta/CoFeB/MgO where a perpendicular layer with tilted easy axis was coupled to an in-plane layer with a uniaxial easy axis. Current was applied orthogonal to both easy axes and thus also normal to an in-plane effective field experienced by the perpendicular layer. Dynamic calculation shows perpendicular layer could be switched at the same time as the in-plane layer is switched. These field-free switching modes realized in the same T-type magnetic system might expedite the birth of multi-state spin memories or spin logic devices which could be operated by all electric manners. Spin-orbit torque (SOT) induced magnetization switching facilitates all electric multi-state spin memories and spin logic devices. Here the authors show a new SOT field-free switching mode where the perpendicular layer with tilted easy axis is coupled to an in-plane layer with a uniaxial easy axis.
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Affiliation(s)
- W J Kong
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - C H Wan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - X Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - B S Tao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - L Huang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - C Fang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - C Y Guo
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Y Guang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - M Irfan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - X F Han
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China. .,Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China.
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22
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Guo CY, Wu F, Wu ZZ, Smidman M, Cao C, Bostwick A, Jozwiak C, Rotenberg E, Liu Y, Steglich F, Yuan HQ. Evidence for Weyl fermions in a canonical heavy-fermion semimetal YbPtBi. Nat Commun 2018; 9:4622. [PMID: 30397192 PMCID: PMC6218469 DOI: 10.1038/s41467-018-06782-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 09/25/2018] [Indexed: 11/08/2022] Open
Abstract
The manifestation of Weyl fermions in strongly correlated electron systems is of particular interest. We report evidence for Weyl fermions in the heavy fermion semimetal YbPtBi from electronic structure calculations, angle-resolved photoemission spectroscopy, magnetotransport and calorimetric measurements. At elevated temperatures where 4f-electrons are localized, there are triply degenerate points, yielding Weyl nodes in applied magnetic fields. These are revealed by a contribution from the chiral anomaly in the magnetotransport, which at low temperatures becomes negligible due to the influence of electronic correlations. Instead, Weyl fermions are inferred from the topological Hall effect, which provides evidence for a Berry curvature, and a cubic temperature dependence of the specific heat, as expected from the linear dispersion near the Weyl nodes. The results suggest that YbPtBi is a Weyl heavy fermion semimetal, where the Kondo interaction renormalizes the bands hosting Weyl points. These findings open up an opportunity to explore the interplay between topology and strong electronic correlations.
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Affiliation(s)
- C Y Guo
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - F Wu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - Z Z Wu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - M Smidman
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - C Cao
- Department of Physics, Hangzhou Normal University, 310036, Hangzhou, China
| | - A Bostwick
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - C Jozwiak
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - E Rotenberg
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Y Liu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - F Steglich
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
- Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany
| | - H Q Yuan
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China.
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China.
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23
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Chen CX, Du J, Xu YM, Han JX, Zhu ZW, Mao YS, Guo CY. [Predictive value of serum glycosylated hemoglobin for the onset of nonalcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:765-770. [PMID: 30481883 DOI: 10.3760/cma.j.issn.1007-3418.2018.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the affect of glycosylated hemoglobin (HbA1c) level for the onset of nonalcoholic fatty liver disease (NAFLD) in cohort population. Methods: An epidemiological survey of the relationship between HbA1c and NAFLD conducted in 2012 was based at cohort baseline, and three follow-up sessions conducted in 2013, 2014 and 2015. In total 2 811 subjects were included in the study after exclusion of NAFLD patients at baseline and those who lost their lives due to relocation, and death. The Cox proportional hazard model was used to analyze the relationship between glycosylated hemoglobin and other risk factors of NAFLD. Continuous variables were compared using the t-test or the Mann-Whitney test. χ (2)-test was used for the measurement of categorical data. Results: A total of 2 811 subjects with mean age of 59 (58.2±9.8) years old, including 1 664 males and 1 147 females. Age, waist circumference, body mass index, systolic blood pressure, γ-glutamyltransferase and fasting blood glucose level of HbA1c abnormal group were higher than normal group. The incidence of NAFLD in the abnormal HbA1c level group (25.4%) was higher than normal group (14.9 %), and diastolic blood pressure, high-density lipoprotein cholesterol was lower than normal group and the differences were statistically significant. During the three follow-up intervals, there were 440 new cases of NAFLD, consisting 285 males and 155 females with cumulative incidence of 15.7% (440/2 811). Multivariate Cox regression analysis showed that patients with elevated HbA1c had a higher risk of developing NAFLD (HR 1.796; 95% CI 1.335~2.418; P < 0.01), and the increased HbA1c level after adjustment for gender, age, and metabolic syndrome-related factors remained an independent risk factors for NAFLD (HR 1.580; 95.0% CI 1.161-2.152; P < 0.01). Conclusion: An elevated HbA1c levels have a positive predictive value for the onset of NAFLD.
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Affiliation(s)
- C X Chen
- Department of Gastroenterology, Hospital of Zhenhai Refine-Chemical Company, Ningbo 315207, China
| | - J Du
- Department of Gastroenterology, Hospital of Zhenhai Refine-Chemical Company, Ningbo 315207, China
| | - Y M Xu
- Department of Gastroenterology, Hospital of Zhenhai Refine-Chemical Company, Ningbo 315207, China
| | - J X Han
- Department of Gastroenterology, Hospital of Zhenhai Refine-Chemical Company, Ningbo 315207, China
| | - Z W Zhu
- Department of Gastroenterology, Hospital of Zhenhai Refine-Chemical Company, Ningbo 315207, China
| | - Y S Mao
- Department of Endocrinology, the Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
| | - C Y Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
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24
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Zhu ZN, Lu Y, Wu CF, Zou SR, Liu H, Wang CF, Luo BZ, Yu HT, Mi M, Wang GQ, Xiong LB, Wang WJ, Luo CY, Zang JJ, Wang ZY, Jia XD, Feng XG, Guo CY, Wu F. [General plan of Shanghai Diet and Health Survey]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:876-879. [PMID: 30060297 DOI: 10.3760/cma.j.issn.0254-6450.2018.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Shanghai Diet and Health Survey (SDHS) was designed to prospectively access local residents' food consumption, energy and nutrient intake, related chemical contaminant exposure, and the seasonal change trend to explore the relationship of diet with health. Data from SDHS can be used as fundamental information and scientific evidences for the development of local nutrition and food safety policies.
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Affiliation(s)
- Z N Zhu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - Y Lu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - C F Wu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - S R Zou
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Liu
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C F Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - B Z Luo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H T Yu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - M Mi
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - G Q Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - L B Xiong
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - W J Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China
| | - C Y Luo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - J J Zang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Z Y Wang
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X D Jia
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X G Feng
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C Y Guo
- Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - F Wu
- Study Group of Shanghai Diet and Health Survey, Shanghai Institutes of Preventive Medicine, Shanghai 200336, China; Study Group of Shanghai Diet and Health Survey, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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25
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Li J, Zhu WL, Kang XX, Zheng L, Guo CY, Yu P, Xiao JC. [Prognostic factors and model of primary liver cancer treated with transcatheter arterial chemoembolization combined with radiofrequency ablation]. Zhonghua Zhong Liu Za Zhi 2017; 39:787-791. [PMID: 29061025 DOI: 10.3760/cma.j.issn.0253-3766.2017.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prognostic factors of primary liver cancer treated with transcatheter arterial chemoembolization (TACE) combined with radiofrequency ablation (RFA), and then to establish a prognostic model. Methods: Clinicopathological and follow-up data of 145 patients who underwent TACE combined with RFA from January 2010 to December 2012 were retrospectively analyzed. Univariate and multivariate survival analyses were performed using the Cox proportional hazards model, and the prognostic model was established. Results: The 1, 2, and 3-year survival rates were 92.6%, 81.4% and 66.2%, respectively. The 3-year recurrence and metastasis rate was 64.8%.Multivariate analysis showed that female cases and higher serum albumin levels were the protective factors for the 3-year overall and relapse-free survival of patients(P<0.05 for all). High levels of alpha-fetoprotein (AFP), alanine aminotransferase (ALT), total bilirubin (TBIL), portal vein thrombosis and higher Child Pugh stages were the independent risk factors for the 3-year overall survival(P<0.05 for all). High levels of AFP, TBIL, portal vein thrombosis and advanced stages of BCLC staging (B and C) were the independent risk factors for tumor recurrence and metastasis(P<0.05 for all). The predictive model established based on the multivariate analysis showed good sensitivity and specificity. The area under ROC curve were higher than 0.90. Conclusions: The prognosis of liver cancer patients treated with TACE combined with RFA is affected by various clinicopathological factors. The systematic evaluation of the relevant factors before treatment may help to select proper patients and improve prognosis.
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Affiliation(s)
- J Li
- Department of Minimally-invasive Interventional Radiology, Affiliated Cancer Hospital of Zhengzhou University, Henan Province Cancer Hospital, Zhengzhou 450008, China
| | - W L Zhu
- Department of Medical Oncology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning 530011, China
| | - X X Kang
- Department of Anesthesiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Zheng
- Department of Minimally-invasive Interventional Radiology, Affiliated Cancer Hospital of Zhengzhou University, Henan Province Cancer Hospital, Zhengzhou 450008, China
| | - C Y Guo
- Department of Minimally-invasive Interventional Radiology, Affiliated Cancer Hospital of Zhengzhou University, Henan Province Cancer Hospital, Zhengzhou 450008, China
| | - P Yu
- Department of Minimally-invasive Interventional Radiology, Affiliated Cancer Hospital of Zhengzhou University, Henan Province Cancer Hospital, Zhengzhou 450008, China
| | - J C Xiao
- Department of Minimally-invasive Interventional Radiology, Affiliated Cancer Hospital of Zhengzhou University, Henan Province Cancer Hospital, Zhengzhou 450008, China
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26
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Yang XY, Guo CY, Zhang X, Zhong YQ, Tian C. [Effect analysis on Deanxit combined with Shuganjieyu capsule in the treatment of refractory gastroesophageal reflux disease]. Zhonghua Yi Xue Za Zhi 2017; 97:3475-3479. [PMID: 29275582 DOI: 10.3760/cma.j.issn.0376-2491.2017.44.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the curative effect of Deanxit combined with Shuganjieyu capsule on the treatment of refractory gastroesophageal reflux disease. Methods: A total of 125 patients with refractory gastroesophageal reflux disease who had failed in standard lansolazole capsule treatment in the Department of Gastroenterology, First People's Hospital of Neijiang were selected. According to the symptom scores and mood scores of gastroesophageal reflux disease, patients were randomly and double-blindly divided into five groups. Group A(Lansoprazole Capsules + Mosapride Citrate + Deanxit), B(Lansoprazole Capsules + Mosapride Citrate + Shuganjieyu capsule), C(Lansoprazole Capsules + Mosapride Citrate+ Deanxit + Shuganjieyu capsule) and D(Deanxit) groups are study groups, the other was control group (Lansoprazole Capsules + Mosapride Citrate). The scores of symptoms and mood were compared after 4 weeks and 8 weeks of treatment. Results: The clinical symptoms score, HAMA and HAMD scores were significantly lower in the all study groups in comparison to the control group after 4 weeks and 8 weeks therapy. The clinical symptoms score, HAMA and HAMD scores in group C were significantly lower than those in group A and B (P<0.05), while the difference between group A and B was not statistically significant(P>0.05). The HAMA and HAMD scores of group D were significantly higher than those of group A, B, C and control group, and the differences were statistically significant (P<0.05). The total effective rate of study groups were significantly higher than those of the control group, and the difference was statistically significant (P<0.05). The total effective rate of group C was significantly higher than that of group A and B (χ(2)=6.47, P<0.05). The total effective rate of group A at the end of the 8th week was significantly higher than that of group B (χ(2)=6.52, P<0.05). The total effective rate of group D at the end of the 4th and 8th week was significantly lower than those of the group A, B, C and control group, the difference was statistically significant (χ(2)=5.85, P<0.05). Conclusions: Deanxit combined with Shuganjieyu capsule is significantly effective in treatment of refractory gastroesophageal reflux disease, which can effectively improve the total treatment efficiency, reduce the symptom scores and mood scores of gastroesophageal reflux disease patients.
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Affiliation(s)
- X Y Yang
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Soochow 215000, China (is working at the Department of Gastroenterology, First People's Hospital of Neijiang now)
| | - C Y Guo
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Soochow 215000, China
| | - X Zhang
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Soochow 215000, China
| | - Y Q Zhong
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Soochow 215000, China
| | - C Tian
- Department of Gastroenterology, the Third Affiliated Hospital of Soochow University, Soochow 215000, China
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Shu M, Wang BY, Zhang J, Guo CY, Wang XH. Analysis of specialized nursing on respiratory functions in thoracotomy patients. J BIOL REG HOMEOS AG 2017; 31:971-976. [PMID: 29254301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To analyze the nursing effect on the respiratory function of thoracotomy patients, sixty thoracotomy hospitalized patients were studied. The subjects were divided into a normal group (A) and an observation group (B). The patients in group A received routine nursing only, while those in group B received chest physiotherapy as well as routine nursing. Afterwards, the respiratory function indicators of the two groups were compared and a data analysis was performed. The results showed that the partial pressure of oxygen (PO2) value of the patients in group B was greater than that of the patients in group A while the partial pressure of carbon dioxide (PCO2) value in group B was smaller than that in group A, and there was a significant difference between the two groups (p less than 0.05). The vital capacity under normal circumstances and forced breathing of group B were greater than that of group A and the difference was statistically significant (p less than 0.05). The incidence of complications (atelectasis, respiratory infections, pleural effusion) was statistically significant between the two groups (p less than 0.05). The degree of autonomic respiratory dysfunction in group B was lower than that in group A, and there was a significant difference (p less than 0.05), suggesting that the respiratory function in patients receiving chest physiotherapy improved significantly.
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Affiliation(s)
- M Shu
- Orthopedic Surgery Section 4, the 2nd Affiliated of Harbin Medical University, Harbin, China
| | - B Y Wang
- The Operation Room, the 2nd Affiliated of Harbin Medical University, Harbin, China
| | - J Zhang
- General Surgery Section 7, the 2nd Affiliated of Harbin Medical University, Harbin, China
| | - C Y Guo
- Chest Surgery Section, the 2nd Affiliated of Harbin Medical University, Harbin, China
| | - X H Wang
- Intensive Care Unit, the 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
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28
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Gao XY, Guo CY, Yang JG. [A case of Takotsubo syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:805-806. [PMID: 29036981 DOI: 10.3760/cma.j.issn.0253-3758.2017.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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29
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Hu XY, Zheng XY, Ma FR, Long M, Han R, Zhou LJ, Wang F, Gong R, Pan T, Zhang SX, Du B, Jin P, Guo CY, Zheng YQ, Liu M, He LH, Qiu JH, Xu M, Song L, Xu XH, Liu XW, Wang SP. [Prevalence of hearing disorders in China: a population-based survey in four provinces of China]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 51:819-825. [PMID: 27938607 DOI: 10.3760/cma.j.issn.1673-0860.2016.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence, severity of hearing disorders and demographics of people with hearing disorders based on the whole population in Jilin, Guangdong, Shannxi and Gansu provinces in China. Methods: According to " WHO Ear and Hearing Disorders Survey Protocol" , 144 clusters were chosen with probability proportional sampling(PPS) method from the four provinces covering 194, 688, 061 residents. Audiological test, otological examination and questionnaire surveying were conducted for all samples from August, 2014 to September, 2015. The hearing disorders were classified according to WHO criteria and classification. Results: Among 47 511 targeted residents, 45, 052 individuals (94.82% response rate) participated in the survey. The standardized prevalence rates of hearing disorders and disabling hearing disorders were 15.84 % and 5.17 % respectively. Almost 50% of people with hearing disorders had no awareness of it or its starting time. There was significant difference in the prevalence among people of different ages, genders, occupations, provinces, marital status and education levels. The prevalence of hearing disorders increased significantly as age grew. People above 60 years old occupied 55.31% of the total hearing disorders. The prevalence of hearing disorders among male, people of low education and those who lost husband or wife, as well as workers and farmers was relatively higher. Conclusions: The prevalence of hearing disorders is high, and hearing disorders are " invisible" . Demographics and socioeconomic factors significantly influence the prevalence of hearing disorders.
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Affiliation(s)
- X Y Hu
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - X Y Zheng
- Institute of Population Research, Peking University, Beijing 100871, China
| | - F R Ma
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - M Long
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - R Han
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - L J Zhou
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - F Wang
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - R Gong
- Institute of Population Research, Peking University, Beijing 100871, China
| | - T Pan
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - S X Zhang
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - B Du
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Jilin University, Changchun 130021, China
| | - P Jin
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Jilin University, Changchun 130021, China
| | - C Y Guo
- Language and Hearing Rehabilitation Center of Jilin Province, Changchun 130052, China
| | - Y Q Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - M Liu
- Otorhinolaryngology Hospital of First Affiliated Hospital of Sun Yetsan University, Guangzhou 510080, China
| | - L H He
- Guangdong Rehabilitation Centre, Guangzhou 510055, China
| | - J H Qiu
- Department of Otorhinolaryngology Head and Neck Surgery, Xijing Hospital, Xi'an 710032, China
| | - M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, Xi'an 710004, China
| | - L Song
- Language and Hearing Rehabilitation Center of Shanxi Province, Xi'an 710016, China
| | - X H Xu
- Department of Otorhinolaryngology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - X W Liu
- Department of Otorhinolaryngology, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - S P Wang
- Hearing and Language Rehabilitation Center of Gangsu Province, Lanzhou 730050, China
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Zhang JL, Guo CY, Zhu XD, Ma L, Zheng GL, Wang YQ, Pi L, Chen Y, Yuan HQ, Tian ML. Disruption of the Accidental Dirac Semimetal State in ZrTe_{5} under Hydrostatic Pressure. Phys Rev Lett 2017; 118:206601. [PMID: 28581794 DOI: 10.1103/physrevlett.118.206601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 06/07/2023]
Abstract
We study the effect of hydrostatic pressure on the magnetotransport properties of zirconium pentatelluride. The magnitude of resistivity anomaly gets enhanced with increasing pressure, but the transition temperature T^{*} is insensitive to it up to 2.5 GPa. In the case of H∥b, the quasilinear magnetoresistance decreases drastically from 3300% (9 T) at ambient pressure to 230% (9 T) at 2.5 GPa. Besides, the change of the quantum oscillation phase from topological nontrivial to trivial is revealed around 2 GPa. Both demonstrate that the pressure breaks the accidental Dirac node in ZrTe_{5}. For H∥c, in contrast, subtle changes can be seen in the magnetoresistance and quantum oscillations. In the presence of pressure, ZrTe_{5} evolves from a highly anisotropic to a nearly isotropic electronic system, which accompanies the disruption of the accidental Dirac semimetal state. It supports the assumption that ZrTe_{5} is a semi-3D Dirac system with linear dispersion along two directions and a quadratic one along the third.
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Affiliation(s)
- J L Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - C Y Guo
- Department of Physics and Center for Correlated Matter, Zhejiang University, Hangzhou 310027, Zhejiang, People's Republic of China
| | - X D Zhu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - L Ma
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - G L Zheng
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - Y Q Wang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - L Pi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
| | - Y Chen
- Department of Physics and Center for Correlated Matter, Zhejiang University, Hangzhou 310027, Zhejiang, People's Republic of China
| | - H Q Yuan
- Department of Physics and Center for Correlated Matter, Zhejiang University, Hangzhou 310027, Zhejiang, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - M L Tian
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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Wang J, Lu W, Li J, Zhang R, Zhou Y, Yin Q, Zheng Y, Wang F, Xia Y, Chen K, Li S, Liu T, Lu J, Zhou Y, Guo CY. Hemodynamic effects of renin-angiotensin-aldosterone inhibitor and β-blocker combination therapy vs. β-blocker monotherapy for portal hypertension in cirrhosis: A meta-analysis. Exp Ther Med 2017; 13:1977-1985. [DOI: 10.3892/etm.2017.4210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 11/25/2016] [Indexed: 01/15/2023] Open
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32
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Zhang LJ, Guo CY, Xu HH, Xu D, Shen XB, Du XY, Zhang MH, Tan JG, Zhang JH, Dong CY, Qian HL, Shi YW, Pan MZ, Zhou XD. [Acute effect of ambient air pollution on small airway lung functions among school children in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:147-153. [PMID: 28231656 DOI: 10.3760/cma.j.issn.0254-6450.2017.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To study the acute effects of compound ambient air pollution on small airway lung functions among school children in Shanghai. Method: A longitudinal survey on lung functions was conducted among 233 school-children from three schools (A, B and C, located in innerring, mid-ring and outer-ring areas). Lung function test was performed once a week for 3 times respectively, among children in school A and B in Dec. 2013 and in school C in Dec. 2014. The fourth lung function test was tested in Jun. 2014 and May 2015 in the respective schools. Results: from the lung function would include items as: forced mid-expiratory flow at 25% of forced vital capacity (MEF(25%)), mid-expiratory flow at 50% of forced vital capacity (MEF(50%)), mid-expiratory flow at 75% of forced vital capacity (MEF(75%)) and mid-expiratory flow between 25% and 75% of the forced vital capacity (FEF(25%-75%)). Data regarding the daily air quality real-time of PM(2.5), PM(10), SO(2) and NO(2) in Dec. 2013, Dec. 2014, Jun. 2014 and May. 2015 from the three environmental monitoring spots and meteorological data from the Shanghai Meteorological Service system which were physically close to the three schools, were collected simultaneously. Linear mixed effect model was used to examine the levels of correlation between lung function indicators and ambient air pollutants. Results When confounding factors on meteorology and individuals were controlled, the lag effects and accumulated lag effects were found to have existed between the internal quarter rang (IQR) concentration of PM(2.5) and PM(10) in lag2 day and lag02 days, IQR concentration of SO(2) in lag02 day and IQR concentration of NO(2) lag0 day, when small airway lung functions like MEF(25%), MEF(50%), MEF(75%) and FEF(25%-75%)(P<0.05) were inspected. Results from the two air pollutants model analysis showed that SO(2) and NO(2) presenting interactive effects with PM(2.5), PM(10) and lag effects more significant than the individual SO(2) and NO(2), respectively (P<0.05). Conclusion: Contents on the ambient air pollutants as PM(2.5), PM(10), SO(2) and NO(2) were negatively associated with the lung functions in the small airways of children, in Shanghai.
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Affiliation(s)
- L J Zhang
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - C Y Guo
- General Office, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - H H Xu
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - D Xu
- Environmental and Occupational Health Department, Shanghai Xuhui Centre for Disease Control and Prevention, Shanghai 200237, China
| | - X B Shen
- Environmental Health Department, Shanghai Baoshan Centre for Disease Control and Prevention, Shanghai 201901, China
| | - X Y Du
- Environmental Health Department, Shanghai Huangpu Centre for Disease Control and Prevention, Shanghai 200023, China
| | - M H Zhang
- Division of Public Health Service and Safety Assessment, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - J G Tan
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Service, Shanghai 200030, China
| | - J H Zhang
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - C Y Dong
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - H L Qian
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - Y W Shi
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - M Z Pan
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
| | - X D Zhou
- Environmental Health Department, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institute for Prevention Medicine, Shanghai 200336, China
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Chen CX, Mao YS, Foster P, Zhu ZW, Du J, Guo CY. Possible association between Helicobacter pylori infection and nonalcoholic fatty liver disease. Appl Physiol Nutr Metab 2016; 42:295-301. [PMID: 28177748 DOI: 10.1139/apnm-2016-0499] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Possible association between Helicobacter pylori infection (HPI) and nonalcoholic fatty liver disease (NAFLD) has been proposed by several studies with inconsistent conclusions. Here, we studied the association between HPI and NAFLD at 3 levels: (i) genetic level; (ii) small molecular level; and (iii) clinical level. Relation data between diseases, genes, and small molecules were acquired from Pathway Studio ResNet Mammalian database. Clinical data were acquired from 2263 elderly South Chinese subjects, including 603 NAFLD patients and 1660 subjects without NAFLD. Results showed that HPI and NAFLD present significantly shared genetic bases (95 genes, p value = 2.5E-72), demonstrating multiple common genetic pathways (enrichment p value ≤ 4.38E-20 for the top 10 pathways). Genetic network analysis suggested that mutual regulation may exist between HPI and NAFLD through 21 out of 95 genes. Furthermore, 85 out of the 95 genes manifested strong interaction with 12 small molecules/drugs that demonstrate effectiveness in treating both diseases. Clinical results showed that HPI rate in the NAFLD group was significantly higher than that in the group without NAFLD (51.9% vs. 43.6%; p value = 4.9E-4). Multivariate logistic regression results supported the observations and suggested that HPI served as a risk factor for NAFLD in the experiment data studied (odds ratio: 1.387, p value = 0.018). Results from this study support the hypothesis that complex biological association may exist between HPI and NAFLD, which partially explains the significant clinical co-incidence in the elderly population of south China.
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Affiliation(s)
- Chang-Xi Chen
- a Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China.,b Department of Gastroenterology, Zhenhai Lianhua Hospital, Ningbo, 315207, China
| | - Yu-Shan Mao
- c Department of Endocrinology, the Affiliated Hospital of Medical College of Ningbo University, Ningbo, 315020, China
| | - Parker Foster
- d Department of Radiology and Imaging Sciences, National Institutes of Health, Bethesda, MD 20852, USA
| | - Zhong-Wei Zhu
- b Department of Gastroenterology, Zhenhai Lianhua Hospital, Ningbo, 315207, China
| | - Juan Du
- b Department of Gastroenterology, Zhenhai Lianhua Hospital, Ningbo, 315207, China
| | - Chuan-Yong Guo
- e Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
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Wiernikowski JT, Barr RD, Webber C, Guo CY, Wright M, Atkinson SA. Alendronate for steroid-induced osteopenia in children with acute lymphoblastic leukaemia or non-Hodgkin’s lymphoma: results of a pilot study. J Oncol Pharm Pract 2016; 11:51-6. [PMID: 16460605 DOI: 10.1191/1078155205jp145oa] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background/objectives. Osteopenia is a significant morbidity in children undergoing therapy for acute lymphoblastic leukaemia (ALL) or non-Hodgkin’s lymphoma (NHL). We conducted a pilot study to assess the impact of alendronate on whole body bone mineral content (WB-BMC), lumbar spine bone mineral density (LS-BMD), biochemical measures of bone mineral metabolism, as well as gross motor function and health-related quality of life (HRQL) in children undergoing therapy for ALL or NHL. Methods. Ten children (nine boys) between the ages of 3.6 and 14.6 years, on identical maintenance chemotherapy for ALL or NHL were treated with oral alendronate once weekly, and daily calcium supplementation, for a period of six months. Outcome measures were WB-BMC and LSBMD; biochemical measures of bone mineral metabolism including plasma osteocalcin, C-terminal telopeptide of type I collagen (CTx), serum calcium, 25-hydroxy-vitamin D (25-OHD), and parathyroid hormone (PTH); as well as assessments of motor function and HRQL. Results. A gain in Z score was observed in 7/9 evaluable patients for WB-BMC (mean increase of 0.49) and LS-BMD (0.51). Plasma osteocalcin and CTx showed a change in bone turnover favouring formation over resorption. Serum calcium and 25- OHD remained normal throughout treatment. After an initial spike, serum PTH returned to baseline values at week 4. Measures of motor function showed some improvement and there were modest gains in HRQL. Conclusions. Alendronate therapy was tolerated well. Further study in a larger sample of children with ALL or NHL is warranted, in the context of a randomized clinical trial.
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Affiliation(s)
- J T Wiernikowski
- Paediatric Haematology/Oncology, McMaster Children's Hospital, Hamilton, Ont., Canada L8N 3Z5.
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35
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Guo CY, Chen P, Zhang MM, Ning JJ, Wang СL, Wang DL, Zhao YL. [Expression analysis of a transformer gene in Daphnia pulex after RNAi]. Mol Biol (Mosk) 2016; 50:847-854. [PMID: 27830687 DOI: 10.7868/s0026898416050050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 12/23/2015] [Indexed: 06/06/2023]
Abstract
In order to explore the importance of the transformer (tra) gene in reproductive mode switching in Daphnia pulex, we studied the effect of silencing of this gene using RNA interference (RNAi). We obtained Dptra dsRNA by constructing and using a dsRNA expression vector and transcription method in vitro. D. pulex individuals in different reproductive modes were treated by soaking in a solution of Dptra dsRNA. We then assayed the expression of the endogenous Dptra mRNA after RNAi treatment using RT-PCR and obtained the suppression ratio. Expression of the tra gene in the RNAi groups was down-regulated compared with the controls after 16 h (p < 0.05). We also analyzed the effect of RNAi on the expression of the TRA protein using Western blot, which showed that the expression level of the TRA protein was reduced after RNAi treatment. Our experimental results showed that soaking of D. pulex adults in tra-specific dsRNA transcribed in vitro can specifically reduce the level of tra mRNA and also reduce the expression of the TRA protein, demonstrating effective in vivo silencing of the tra gene.
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Affiliation(s)
- C Y Guo
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - P Chen
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - M M Zhang
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - J J Ning
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - С L Wang
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - D L Wang
- School of Marine Sciences, Ningbo University, Ningbo, 315211 China
| | - Y L Zhao
- School of Life Science, East China Normal University, Shanghai, 200062 China
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36
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Jiang WB, Yang L, Guo CY, Hu Z, Lee JM, Smidman M, Wang YF, Shang T, Cheng ZW, Gao F, Ishii H, Tsuei KD, Liao YF, Lu X, Tjeng LH, Chen JM, Yuan HQ. Crossover from a heavy fermion to intermediate valence state in noncentrosymmetric Yb2Ni12(P,As)7. Sci Rep 2015; 5:17608. [PMID: 26626431 PMCID: PMC4667268 DOI: 10.1038/srep17608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 11/03/2015] [Indexed: 11/16/2022] Open
Abstract
We report measurements of the physical properties and electronic structure of the hexagonal compounds Yb2Ni12Pn7 (Pn = P, As) by measuring the electrical resistivity, magnetization, specific heat and partial fluorescence yield x-ray absorption spectroscopy (PFY-XAS). These demonstrate a crossover upon reducing the unit cell volume, from an intermediate valence state in Yb2Ni12As7 to a heavy-fermion paramagnetic state in Yb2Ni12P7, where the Yb is nearly trivalent. Application of pressure to Yb2Ni12P7 suppresses TFL, the temperature below which Fermi liquid behavior is recovered, suggesting the presence of a quantum critical point (QCP) under pressure. However, while there is little change in the Yb valence of Yb2Ni12P7 up to 30 GPa, there is a strong increase for Yb2Ni12As7 under pressure, before a near constant value is reached. These results indicate that any magnetic QCP in this system is well separated from strong valence fluctuations. The pressure dependence of the valence and lattice parameters of Yb2Ni12As7 are compared and at 1 GPa, there is an anomaly in the unit cell volume as well as a change in the slope of the Yb valence, indicating a correlation between structural and electronic changes.
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Affiliation(s)
- W B Jiang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - L Yang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - C Y Guo
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - Z Hu
- Max Planck Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
| | - J M Lee
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - M Smidman
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - Y F Wang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - T Shang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - Z W Cheng
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - F Gao
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China
| | - H Ishii
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - K D Tsuei
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Y F Liao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - X Lu
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China.,Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
| | - L H Tjeng
- Max Planck Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
| | - J M Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - H Q Yuan
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou, 310058, China.,Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
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37
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Chen Y, Jiang WB, Guo CY, Ronning F, Bauer ED, Park T, Yuan HQ, Fisk Z, Thompson JD, Lu X. Reemergent superconductivity and avoided quantum criticality in Cd-doped CeIrIn(5) under pressure. Phys Rev Lett 2015; 114:146403. [PMID: 25910144 DOI: 10.1103/physrevlett.114.146403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Indexed: 06/04/2023]
Abstract
We investigated the electrical resistivity and heat capacity of 1% Cd-doped CeIrIn_{5} under hydrostatic pressure up to 2.7 GPa, near where long-range antiferromagnetic order is suppressed and bulk superconductivity suddenly reemerges. The pressure-induced T_{c} is close to that of pristine CeIrIn_{5} at 2.7 GPa, and no signatures of a quantum critical point under pressure support a local origin of the antiferromagnetic moments in Cd-CeIrIn_{5} at ambient pressure. Similarities between superconductors CeIrIn_{5} and CeCoIn_{5} in response to Cd substitutions suggest a common magnetic mechanism.
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Affiliation(s)
- Y Chen
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China
| | - W B Jiang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China
| | - C Y Guo
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China
| | - F Ronning
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E D Bauer
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Tuson Park
- Department of Physics, Sungkyunkwan University, Suwon 440-746, South Korea
| | - H Q Yuan
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Z Fisk
- Department of Physics, University of California, Irvine, California 92697, USA
| | - J D Thompson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Xin Lu
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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Zhao YM, Wang J, Liu HB, Guo CY, Zhang WM. Microwave-assisted Extraction of Alantolactone and Isoalantolactone from Inula helenium. Indian J Pharm Sci 2015; 77:116-20. [PMID: 25767328 PMCID: PMC4355875 DOI: 10.4103/0250-474x.151594] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 10/24/2014] [Accepted: 01/19/2015] [Indexed: 11/16/2022] Open
Abstract
Microwave-assisted extraction was used for the extraction of alantolactone and isoalantolactone from Inula helenium. Effects of various experimental factors including ethanol concentration, particle size, microwave radiation time, the ratio of material to liquid and extraction temperature on yield of alantolactone and isoalantolactone were evaluated. The optimal extracting process of the alantolactone and isoalantolactone from the root of the Inula helenium was 1 g plant sample (sifted through 140 mesh) mixed with 15 ml of 80% ethanol solution, microwave radiation 120 s at 50°. Under these optimal conditions, the yield of alantolactone and isoalantolactone was 31.83±2.08 mg/g and 21.25±1.37 mg/g, respectively. Compared with heat reflux extraction, ultrasound-assisted extraction, microwave-assisted extraction was more efficient and timesaving for the extraction of alantolactone and isoalantolactone from Inula helenium.
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Affiliation(s)
- Y M Zhao
- Department of Pharmacy, Hebei North University, No.11 Zuanshi South Road, Zhangjiakou-075 000, China
| | - J Wang
- Department of Pharmacy, Hebei North University, No.11 Zuanshi South Road, Zhangjiakou-075 000, China
| | - H B Liu
- Department of Pharmacy, Hebei North University, No.11 Zuanshi South Road, Zhangjiakou-075 000, China
| | - C Y Guo
- Department of Pharmacy, Hebei North University, No.11 Zuanshi South Road, Zhangjiakou-075 000, China
| | - W M Zhang
- Department of Pharmacy, Hebei North University, No.11 Zuanshi South Road, Zhangjiakou-075 000, China
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Guo CY, Huang YH, Wei SN, Ouyang ZL, Yan Y, Huang XH, Qin QW. Establishment of a new cell line from the heart of giant grouper, Epinephelus lanceolatus (Bloch), and its application in toxicology and virus susceptibility. J Fish Dis 2015; 38:175-186. [PMID: 24372271 DOI: 10.1111/jfd.12221] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 11/20/2013] [Accepted: 11/21/2013] [Indexed: 06/03/2023]
Abstract
A new marine fish cell line, derived from the heart of giant grouper, Epinephelus lanceolatus (Bloch), was established and characterized. The cell line was designated as ELGH and subcultured with more than 60 passages. The ELGH cells were mainly composed of fibroblast-like cells and multiplied well in Leibovitz's L-15 medium supplemented with 10% foetal bovine serum (FBS) at 28 °C. Chromosome analysis indicated that the modal chromosome number was 48. The fluorescent signals were detected in ELGH when transfected with green fluorescent protein reporter plasmids. The 50% cytotoxic concentration (CC50 ) of the extracellular products (ECPs) from Streptococcus iniae and Vibrio alginolyticus E333 on ELGH cells was 60.02 and 12.49 μg mL(-1), respectively. Moreover, the ELGH cells showed susceptibility to Singapore grouper iridovirus (SGIV), but not to soft-shelled turtle iridovirus (STIV), red-spotted grouper nervous necrosis virus (RGNNV) and spring viremia of carp virus (SVCV), which was demonstrated by the presence of a severe cytopathic effect (CPE) and increased viral titres. In addition, electron microscopy observation showed that abundant virus particles were present in the infected cells. Taken together, our data above provided the potential utility of ELGH cells for transgenic and genetic manipulation, as well as cytotoxicity testing and virus pathogenesis.
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Affiliation(s)
- C Y Guo
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; University of Chinese Academy of Sciences, Beijing, China
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Jiang WB, Guo CY, Weng ZF, Wang YF, Chen YH, Chen Y, Pang GM, Shang T, Lu X, Yuan HQ. Superconductivity and structural distortion in BaPt2As2. J Phys Condens Matter 2015; 27:022202. [PMID: 25483554 DOI: 10.1088/0953-8984/27/2/022202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the synthesis of BaPt2As2 single crystals and the discovery of superconductivity and a structural phase transition in this compound by measuring the electrical resistivity, magnetic susceptibility and specific heat as well as the x-ray diffraction at low temperatures. BaPt2As2 crystallizes in the CaBe2Ge2-type tetragonal structure (P4/nmm) at room temperature and undergoes a first-order structural transition at TS ≃ 275 K, which is likely to be associated with a charge-density-wave (CDW) instability. BCS-like superconductivity with two subsequent transitions Tc1 ≃ 1.67 K and Tc2 ≃ 1.33 K is observed. Our results demonstrate that BaPt2As2 may serve as a new system for studying the interplay of superconductivity and the CDW order.
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Affiliation(s)
- W B Jiang
- Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China
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Zhu R, Chen K, Zheng YY, Zhang HW, Wang JS, Xia YJ, Dai WQ, Wang F, Shen M, Cheng P, Zhang Y, Wang CF, Yang J, Li JJ, Lu J, Zhou YQ, Guo CY. Meta-analysis of the efficacy of probiotics in Helicobacter pylori eradication therapy. World J Gastroenterol 2014; 20:18013-18021. [PMID: 25548501 PMCID: PMC4273153 DOI: 10.3748/wjg.v20.i47.18013] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 06/28/2014] [Accepted: 07/11/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the role of probiotics in the standard triple Helicobacter pylori therapy.
METHODS: In this meta-analysis, we investigated the efficacy of probiotics in a standard triple H. pylori therapy in adults. Searches were mainly conducted in MEDLINE/PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials. Fourteen studies met our criteria, and the quality of these studies was assessed using the Jadad scale. We used STATA version 12.0 to extract data and to calculate the odds ratios (ORs), which are presented with the corresponding 95% confidence intervals (CIs). The data are presented as forest plots.
RESULTS: The pooled ORs for the eradication rates calculated by intention-to-treat analysis and per-protocol analysis in the probiotic group vs the control group were 1.67 (95%CI: 1.38-2.02) and 1.68 (95%CI: 1.35-2.08), respectively, using the fixed-effects model. The sensitivity of the Asian studies was greater than that of the Caucasian studies (Asian: OR = 1.78, 95%CI: 1.40-2.26; Caucasian: OR = 1.48, 95%CI: 1.06-2.05). The pooled OR for the incidence of total adverse effects was significantly lower in the probiotic group (OR = 0.49, 95%CI: 0.26-0.94), using the random effects model, with significant heterogeneity (I2 = 85.7%). The incidence of diarrhea was significantly reduced in the probiotic group (OR = 0.21, 95%CI: 0.06-0.74), whereas the incidence of taste disorders, metallic taste, vomiting, nausea, and epigastric pain did not differ significantly between the probiotic group and the control group.
CONCLUSION: Supplementary probiotic preparations during standard triple H. pylori therapy may improve the eradication rate, particularly in Asian patients, and the incidence of total adverse effects.
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Xu L, Dai WQ, Wang F, He L, Zhou YQ, Lu J, Xu XF, Guo CY. Association of STAT4 gene rs7574865G > T polymorphism with ulcerative colitis risk: evidence from 1532 cases and 3786 controls. Arch Med Sci 2014; 10:419-24. [PMID: 25097569 PMCID: PMC4107247 DOI: 10.5114/aoms.2014.43735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 04/21/2012] [Accepted: 05/11/2012] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Several studies have reported the relationship between the STAT4 rs7574865G > T polymorphism as a susceptibility factor to ulcerative colitis (UC). However, the results have been controversial. Therefore, we conducted this meta-analysis to obtain the most reliable estimate of the association. MATERIAL AND METHODS PubMed, Embase and Web of Science databases were searched. Crude odds ratios (OR) with 95% confidence intervals (CI) were extracted and pooled to assess the strength of the association between the STAT4 rs7574865G > T polymorphism and risk of UC. A total of five eligible studies including 1532 cases and 3786 controls based on the search criteria were involved in this meta-analysis. RESULTS We observed that the STAT4 rs7574865G > T polymorphism was significantly correlated with UC risk when all studies were pooled into the meta-analysis (the allele contrast model: OR = 1.13, 95% CI = 1.02-1.25; the heterozygote codominant model: OR = 1.22, 95% CI = 1.04-1.43; the dominant model: OR = 1.25, 95% CI = 1.07-1.45). In the stratified analysis by ethnicity, significant associations were observed in Spanish for the allele contrast model (OR = 1.20; 95% CI = 1.04-1.39), for the homozygote codominant model (OR = 1.57; 95% CI = 1.07-2.31), for the dominant model (OR = 1.20; 95% CI = 1.01-1.43), and for the recessive model (OR = 1.50; 95% CI = 1.03-2.19). CONCLUSIONS This meta-analysis suggests that the STAT4 rs7574865G > T polymorphism is a low-penetrant risk factor for UC, especially in Spanish.
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Affiliation(s)
- Ling Xu
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Wei-Qi Dai
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Fan Wang
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Lei He
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Ying-Qun Zhou
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Jie Lu
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Xuan-Fu Xu
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Chuan-Yong Guo
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
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Li HJ, Guo CY, Sun JY, Sun LJ, Zhao PH, Hu L, Li Y, Hu J. Nested polymerase chain reaction amplification and sequencing analysis of the light-chain and heavy-chain variable regions in the influenza A H1N1 virus hemagglutinin monoclonal antibody gene. Genet Mol Res 2014; 13:4372-9. [PMID: 25036343 DOI: 10.4238/2014.june.11.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The nested polymerase chain reaction (PCR) method was used for the amplification of the influenza A H1N1 virus hemagglutinin monoclonal antibody light-chain and heavy-chain genes. Sequence analysis of the obtained genes was then used to identify common cloning methods of the mouse immunoglobulin-kappa (Igκ) light-chain and heavy-chain variable gene regions. Twenty-two pairs of amplification primers for the mouse Igκ light-chain and heavy-chain variable gene regions were designed, and 6 mouse anti-human H1N1 influenza virus hemagglutinin monoclonal antibody light-chain and heavy-chain variable gene regions were cloned and sequenced. Comparative analysis was conducted between our results and the mouse Ig sequences published in the National Center of Biotechnology Information (NCBI). The nested PCR method effectively avoided cloning the pseudogenes of the monoclonal antibody, and the amino acid sequence obtained was consistent with the characteristics of the mouse Ig variable region. A general method of cloning the mouse Ig light-chain and heavy-chain variable gene regions was established, which provides a basis for further cloning of mouse monoclonal antibody variable gene regions. This study also provides data for further studies of H1N1 influenza virus hemagglutinin antibody binding sites.
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Affiliation(s)
- H J Li
- School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - C Y Guo
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - J Y Sun
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - L J Sun
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - P H Zhao
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - L Hu
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Y Li
- Central Laboratory of Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - J Hu
- School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Cheng P, Dai W, Wang F, Lu J, Shen M, Chen K, Li J, Zhang Y, Wang C, Yang J, Zhu R, Zhang H, Zheng Y, Guo CY, Xu L. Ethyl pyruvate inhibits proliferation and induces apoptosis of hepatocellular carcinoma via regulation of the HMGB1-RAGE and AKT pathways. Biochem Biophys Res Commun 2013; 443:1162-8. [PMID: 24361892 DOI: 10.1016/j.bbrc.2013.12.064] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 12/11/2013] [Indexed: 01/10/2023]
Abstract
Ethyl pyruvate (EP) was recently identified as a stable lipophilic derivative of pyruvic acid with significant antineoplastic activities. The high mobility group box-B1 (HMGB1)-receptor for advanced glycation end-products (RAGE) and the protein kinase B (Akt) pathways play a crucial role in tumorigenesis and development of many malignant tumors. We tried to observe the effects of ethyl pyruvate on liver cancer growth and explored its effects in hepatocellular carcinoma model. In this study, three hepatocellular carcinoma cell lines were treated with ethyl pyruvate. An MTT colorimetric assay was used to assess the effects of EP on cell proliferation. Flow cytometry and TUNEL assays were used to analyze apoptosis. Real-time PCR, Western blotting and immunofluorescence demonstrated ethyl pyruvate reduced the HMGB1-RAGE and AKT pathways. The results of hepatoma orthotopic tumor model verified the antitumor effects of ethyl pyruvate in vivo. EP could induce apoptosis and slow the growth of liver cancer. Moreover, EP decreased the expression of HMGB1, RAGE, p-AKT and matrix metallopeptidase-9 (MMP9) and increased the Bax/Bcl-2 ratio. In conclusion, this study demonstrates that ethyl pyruvate induces apoptosis and cell-cycle arrest in G phase in hepatocellular carcinoma cells, plays a critical role in the treatment of cancer.
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Affiliation(s)
- Ping Cheng
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Weiqi Dai
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Fan Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Jie Lu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Miao Shen
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Kan Chen
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Jingjing Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Yan Zhang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Chengfen Wang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Jing Yang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Rong Zhu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Huawei Zhang
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Yuanyuan Zheng
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
| | - Chuan-Yong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China.
| | - Ling Xu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China.
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Abstract
BACKGROUND Hepatitis A is the second most common vaccine-preventable travel-associated infectious disease and hepatitis A virus (HAV) is the most common cause of viral hepatitis. The incidence of infection is closely related to sanitary conditions and the level of economic development. METHODS We evaluated HAV incidence, infection-related risk factors, and HAV vaccination rates in international travelers through retrospective analyses using major databases, such as CENTRAL, MEDLINE, EMBASE, and the current literature describing epidemiological data for HAV infection in recent years. RESULTS AND CONCLUSIONS We found that the incidence of HAV infection in developed countries is very low. As international travel increases, the incidence of hepatitis A among travelers remains high and likely leads to regional outbreaks. Travelers should visit the Centers for Disease Control and Prevention website or Infectious Disease Prevention Center of their countries to learn about the incidence of infectious diseases associated with their destination before going abroad to determine if they should be vaccinated.
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Affiliation(s)
- Dong Wu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Zhu L, Li CH, Su XR, Guo CY, Wang Z, Jin CH, Li Y, Li TW. Identification and assessment of differentially expressed genes involved in growth regulation in Apostichopus japonicus. Genet Mol Res 2013; 12:3028-37. [PMID: 24065658 DOI: 10.4238/2013.august.20.4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Rapid and efficient growth is a major consideration and challenge for global mariculture. The differential growth rate of the sea cucumber, Apostichopus japonicus, has significantly hampered the total production of the industry. In the present study, forward and reverse suppression subtractive hybridization libraries were constructed and sequenced from a fast-growth group and a slow-growth group of the sea cucumber. A total of 142 differentially expressed sequence tags (ESTs) with insertions longer than 150 bp were identified and further analyzed. Fifty-seven of these ESTs (approximately 40%) were functionally annotated for cell structure, energy metabolism, immunity response, and growth factor categories. Six candidate genes, arginine kinase, cytochrome c oxidase subunit I, HSP70, β-actin, ferritin, and the ADP-ribosylation factor, were further validated by quantitative PCR. Significant differences were found between the fast- and slow-growth groups (P < 0.05) for the expression levels of arginine kinase, cytochrome c oxidase, HSP70, the ADP-ribosylation factor, and β-actin. However, no significant difference was observed for ferritin. Our results provide promising candidate gene markers for practical size screening, and also further promote marker-assisted selective breeding of this species.
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Affiliation(s)
- L Zhu
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province, China
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Xu L, Dai WQ, Xu XF, Wang F, He L, Guo CY. Effects of multiple-target anti-microRNA antisense oligodeoxyribonucleotides on proliferation and migration of gastric cancer cells. Asian Pac J Cancer Prev 2013; 13:3203-7. [PMID: 22994734 DOI: 10.7314/apjcp.2012.13.7.3203] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUNDS To investigate the inhibiting effects of multi-target anti-microRNA antisense oligonucleotide (MTg-AMOs) on proliferation and migration of human gastric cancer cells. METHODS Single anti-microRNA antisense oligonucleotides (AMOs) and MTg-AMOs for miR-221, 21, and 106a were designed and transfected into SGC7901, a gastric cancer cell line, to target the activity of these miRNAs. Their expression was analyzed using stem-loop RT-PCR and effects of MTg-AMOs on human gastric cancer cells were determined using the following two assay methods: CCK8 for cell proliferation and transwells for migration. RESULTS In the CCK-8 cell proliferation assay, 0.6 μmol/L was selected as the preferred concentration of MTg-AMOs and incubation time was 72 hours. Under these experimental conditions, MTg-AMOs demonstrated better suppression of the expression of miR-221, miR-106a, miR-21 in gastric cancer cells than that of single AMOs (P = 0.014, 0.024; 0.038, respectively). Migration activity was also clearly decreased as compared to those in randomized and blank control groups (28 ± 4 Vs 54 ± 3, P <0.01; 28 ± 4 Vs 59 ± 4, P < 0.01). CONCLUSIONS MTg-AMOs can specifically inhibit the expression of multiple miRNAs, and effectively antagonize proliferation and migration of gastric cancer cells promoted by oncomirs.
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Affiliation(s)
- Ling Xu
- Department of Gastroenterology, Tenth People's Hospital of Tongji University, Shanghai, China
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Wu D, Wang F, Dai WQ, He L, Lu J, Xu L, Guo CY. The miR-146a rs2910164 G > C polymorphism and susceptibility to digestive cancer in Chinese. Asian Pac J Cancer Prev 2013; 14:399-403. [PMID: 23534761 DOI: 10.7314/apjcp.2013.14.1.399] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Several studies have reported the role of the miR-146a rs2910164 G > C polymorphism as a susceptibility factor for several digestive cancers. However, the results have been controversial. Therefore, we conducted the present meta-analysis to obtain the most reliable estimate of the association. METHODS PubMed, Embase and Web of Science databases were searched. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were extracted and pooled to assess the strength of the association between miR-146a rs2910164 G > C polymorphism and digestive cancer risk. A total of four eligible studies including 3,447 cases and 5,041 controls based on the search criteria were included. RESULTS We observed that miR-146a rs2910164 G > C polymorphism was not significantly correlated with digestive cancer risks when all studies were pooled into the meta-analysis. While we found that miR-146a rs2910164 polymorphism was not associated with gastric cancer, it was significantly linked with hepatocellular cancer risk (the homozygote codominant model: OR = 1.40, 95% CI = 1.04-1.87). In the stratified analysis by ethnicity, significant associations were observed in Chinese population for the allele contrast model (OR = 1.25; 95% CI = 1.12-1.38), for the homozygote codominant model (OR = 1.62; 95% CI = 1.28-2.04), and for the recessive model (OR = 1.38; 95% CI = 1.16-1.64). However, studies with Asian groups presented no significant association for all genetic models. CONCLUSIONS This meta-analysis suggests that the miR-146a rs2910164 G > C polymorphism is a low-penetrant risk factor for digestive cancers in Chinese.
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Affiliation(s)
- Dong Wu
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Wang F, He L, Dai WQ, Xu YP, Wu D, Lin CL, Wu SM, Cheng P, Zhang Y, Shen M, Wang CF, Lu J, Zhou YQ, Xu XF, Xu L, Guo CY. Salinomycin inhibits proliferation and induces apoptosis of human hepatocellular carcinoma cells in vitro and in vivo. PLoS One 2012; 7:e50638. [PMID: 23284640 PMCID: PMC3527475 DOI: 10.1371/journal.pone.0050638] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 10/23/2012] [Indexed: 01/17/2023] Open
Abstract
The anti-tumor antibiotic salinomycin (Sal) was recently identified as a selective inhibitor of breast cancer stem cells; however, the effect of Sal on hepatocellular carcinoma (HCC) is not clear. This study aimed to determine the anti-tumor efficacy and mechanism of Sal on HCC. HCC cell lines (HepG2, SMMC-7721, and BEL-7402) were treated with Sal. Cell doubling time was determinated by drawing growth curve, cell viability was evaluated using the Cell Counting Kit 8. The fraction of CD133(+) cell subpopulations was assessed by flow cytometry. We found that Sal inhibits proliferation and decreases PCNA levels as well as the proportion of HCC CD133(+)cell subpopulations in HCC cells. Cell cycle was analyzed using flow cytometry and showed that Sal caused cell cycle arrest of the various HCC cell lines in different phases. Cell apoptosis was evaluated using flow cytometry and Hoechst 33342 staining. Sal induced apoptosis as characterized by an increase in the Bax/Bcl-2 ratio. Several signaling pathways were selected for further mechanistic analyses using real time-PCR and Western blot assays. Compared to control, β-catenin expression is significantly down-regulated upon Sal addition. The Ca(2+) concentration in HCC cells was examined by flow cytometry and higher Ca(2+) concentrations were observed in Sal treatment groups. The anti-tumor effect of Sal was further verified in vivo using the hepatoma orthotopic tumor model and the data obtained showed that the size of liver tumors in Sal-treated groups decreased compared to controls. Immunohistochemistry and TUNEL staining also demonstrated that Sal inhibits proliferation and induces apoptosis in vivo. Finally, the role of Sal on in vivo Wnt/β-catenin signaling was evaluated by Western blot and immunohistochemistry. This study demonstrates Sal inhibits proliferation and induces apoptosis of HCC cells in vitro and in vivo and one potential mechanism is inhibition of Wnt/β-catenin signaling via increased intracellular Ca(2+) levels.
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Affiliation(s)
- Fan Wang
- Department of Gastroenterology, Shanghai tenth People's Hospital, Tongji University of Medicine, Shanghai, People's Republic of China
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He L, Wang F, Dai WQ, Wu D, Lin CL, Wu SM, Cheng P, Zhang Y, Shen M, Wang CF, Lu J, Zhou YQ, Xu XF, Xu L, Guo CY. Mechanism of action of salinomycin on growth and migration in pancreatic cancer cell lines. Pancreatology 2012; 13:72-8. [PMID: 23395573 DOI: 10.1016/j.pan.2012.11.314] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 11/19/2012] [Accepted: 11/30/2012] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Pancreatic cancer is one of the most aggressive and lethal cancers worldwide and there are few effective treatments. Recently, salinomycin (Sal) was reported to alter proliferation and apoptosis in various tumors. This prompted us to investigate the effect of Sal on pancreatic cancer cells and to explore the possible molecular mechanism in vitro. METHODS After treatment with Sal, pancreatic cancer cell viability and apoptosis were analyzed by Hoechst 33342 staining and flow cytometry, respectively. Invasion and metastasis of pancreatic cancer cells were assayed by a Transwell migration assay. Flow cytometry was also used to assessed the fraction of CD133(+) cell subpopulations. The expression of proliferating cell nuclear antigen (PCNA), Bcl-2, E-cadherin, and Wnt/β-catenin signaling-related proteins were detected by RT-PCR and western blot. RESULTS Sal inhibited the growth and migration of pancreatic cancer cells in vitro in a dose- and time-dependent manner. We found that the proportion of CD133(+) cell subpopulations decreased after treatment with Sal in pancreatic cancer cell lines at the same time. The percentage of apoptotic cells was increased after Sal treatment. Compared with control groups, Bax and E-cadherin were significantly upregulated, and Bcl-2 and PCNA were significantly downregulated in Sal-treated cells. The expression of Wnt/β-catenin signaling-related proteins (β-catenin and p-GSK-3β) was inhibited. CONCLUSIONS These results indicate that Sal could influence the cell growth and migration in pancreatic cancer cells in vitro, which may occur by inhibition of Wnt/β-catenin signaling.
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Affiliation(s)
- Lei He
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University of Medicine, Shanghai 200072, PR China
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